I'd rather use both. The bigger bag to get all the major crap off and the smaller flak 2.0 bag to do the final cleanup.Well, you will put your design/imprint on it.......kinda like the custom program.
Of course we don´t know how big your butt is, do you need the big bag that the original M Frame came in, or can you settle for wiping with a Flak 2.0 bag.